Blake J, Quartaro G, Onorati S
Department of Psychology, York University, Ontario, Canada.
J Child Lang. 1993 Feb;20(1):139-52. doi: 10.1017/s0305000900009168.
The validity of MLU and a measure of syntactic complexity were tested against LARSP on spontaneous speech samples from 87 children, ranging in age from 1;6 to 4;9. Change in some LARSP clausal measures was found across MLU stages up to MLU 4.5. For the measure of syntactic complexity, no such ceiling was found for the clausal connectivity score in LARSP or for average clausal complexity in LARSP. Neither MLU nor the measure of syntactic complexity indexed LARSP phrasal complexity. It is concluded that MLU is a valid measure of clausal complexity up to 4.5 and that our measure of syntactic complexity is more valid at more advanced stages.
针对87名年龄在1岁6个月至4岁9个月之间儿童的自发言语样本，将平均语句长度（MLU）及一种句法复杂性测量方法与语言分析参考方案（LARSP）进行了效度检验。在MLU达到4.5之前的各个阶段，发现LARSP的一些从句测量指标存在变化。对于句法复杂性测量方法而言，LARSP的从句连接性得分或LARSP的平均从句复杂性均未发现此类上限。MLU和句法复杂性测量方法均未对LARSP的短语复杂性进行索引。得出的结论是，MLU是4.5及以下从句复杂性的有效测量指标，并且我们的句法复杂性测量方法在更高级阶段更有效。
